com.google.errorprone.bugpatterns.inject.AssistedInjectAndInjectOnConstructors Maven / Gradle / Ivy
/*
* Copyright 2013 The Error Prone Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.errorprone.bugpatterns.inject;
import static com.google.errorprone.BugPattern.SeverityLevel.WARNING;
import static com.google.errorprone.matchers.ChildMultiMatcher.MatchType.AT_LEAST_ONE;
import static com.google.errorprone.matchers.InjectMatchers.ASSISTED_INJECT_ANNOTATION;
import static com.google.errorprone.matchers.InjectMatchers.hasInjectAnnotation;
import static com.google.errorprone.matchers.Matchers.allOf;
import static com.google.errorprone.matchers.Matchers.constructor;
import static com.google.errorprone.matchers.Matchers.hasAnnotation;
import com.google.errorprone.BugPattern;
import com.google.errorprone.VisitorState;
import com.google.errorprone.bugpatterns.BugChecker;
import com.google.errorprone.bugpatterns.BugChecker.ClassTreeMatcher;
import com.google.errorprone.matchers.Description;
import com.google.errorprone.matchers.Matcher;
import com.sun.source.tree.ClassTree;
/**
* @author [email protected] (Steven Goldfeder)
*/
@BugPattern(
summary =
"@AssistedInject and @Inject should not be used on different constructors in the same"
+ " class.",
severity = WARNING)
public class AssistedInjectAndInjectOnConstructors extends BugChecker implements ClassTreeMatcher {
/**
* Matches if a class has a constructor that is annotated with @Inject and a constructor annotated
* with @AssistedInject.
*/
private static final Matcher HAS_CONSTRUCTORS_WITH_INJECT_AND_ASSISTED_INJECT =
allOf(
constructor(AT_LEAST_ONE, hasInjectAnnotation()),
constructor(AT_LEAST_ONE, hasAnnotation(ASSISTED_INJECT_ANNOTATION)));
@Override
public final Description matchClass(ClassTree classTree, VisitorState state) {
if (HAS_CONSTRUCTORS_WITH_INJECT_AND_ASSISTED_INJECT.matches(classTree, state)) {
return describeMatch(classTree);
}
return Description.NO_MATCH;
}
}